CN209943536U - Butterfly valve sealing valve seat - Google Patents
Butterfly valve sealing valve seat Download PDFInfo
- Publication number
- CN209943536U CN209943536U CN201920076807.1U CN201920076807U CN209943536U CN 209943536 U CN209943536 U CN 209943536U CN 201920076807 U CN201920076807 U CN 201920076807U CN 209943536 U CN209943536 U CN 209943536U
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- China
- Prior art keywords
- valve
- butterfly
- packing
- seat
- valve body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a butterfly valve seals disk seat, including gland, stuffing box, packing pad, valve body, axle sleeve, butterfly plate, circular cone round pin axle, valve seat sealing washer, sealing washer clamp plate, fixing bolt, valve rod. The valve body and the butterfly plate are connected with the conical pin shaft through the valve rod, and the sealing surface of the butterfly plate is arc-shaped. The valve seat sealing ring and the valve body are fixedly connected with the sealing ring pressing plate through a fixing bolt. The bottom of packing box is equipped with the gasket, and the gasket middle part has the gasket through-hole, and the gasket passes through this gasket through-hole endotheca on the valve rod. The utility model discloses a butterfly valve seals disk seat, the sealed face design of butterfly plate are convex structural shape, not only save material materials, can also bear the bigger pressure of pipeline, and sealed extrusion deformation is few simultaneously, has improved the sealing performance of product. The valve seat sealing ring is effectively and firmly combined with the valve body through the sealing ring pressing plate, so that the sealing performance of the product in the using process is continuously kept stable and reliable.
Description
Technical Field
The utility model belongs to the technical field of the butterfly valve, concretely relates to butterfly valve seals disk seat.
Background
The butterfly valve is a regulating valve with simple structure, can be used for opening and closing a low-pressure pipe medium, is a valve with a closing part butterfly plate which is a disc and rotates around a valve shaft to open and close, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The main functions of cutting off and throttling are on the pipeline. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.
The butterfly valve in the prior art comprises a butterfly plate, a valve body, a sealing ring and a valve rod. However, in the case of various corrosive media, the material of the seal ring is required to be a corrosion-resistant material. The sealing ring material of the butterfly valve is a corrosion-resistant material with strong corrosion resistance, and the butterfly plate and the sealing ring are both of a new structure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's situation, overcome above-mentioned defect, provide a butterfly valve seals disk seat.
The utility model discloses a following technical scheme, butterfly valve seal disk seat includes gland, stuffing box, packing pad, valve body, axle sleeve, butterfly plate, circular cone round pin axle, valve seat seal circle, sealing washer clamp plate, fixing bolt, valve rod, wherein:
the valve body and the butterfly plate are connected with a conical pin shaft through a valve rod, and the sealing surface of the butterfly plate is arc-shaped;
the valve seat sealing ring and the valve body are fixedly connected with the sealing ring pressing plate through fixing bolts;
a packing pad is arranged at the bottom of the packing box, a packing pad through hole is formed in the middle of the packing pad, and the packing pad is sleeved on the valve rod through the packing pad through hole;
the shaft sleeve is positioned below the packing pad, the middle part of the shaft sleeve is provided with a shaft sleeve through hole, and the shaft sleeve is sleeved on the valve rod through the shaft sleeve through hole;
the packing pad is filled with packing, and gland is located the packing pad top, and gland cup joints on the valve rod, gland through symmetrical bolt and valve body fixed connection.
According to the technical scheme, the filler filled in the filler pad is made of polytetrafluoroethylene.
According to the technical scheme, the packing gland is in a disc shape with a hole in the center.
According to the technical scheme, the butterfly valve sealing valve seat further comprises a supporting sleeve, and the supporting sleeve is fixedly connected with the butterfly plate.
According to the technical scheme, the butterfly valve sealing valve seat further comprises a double-opening ring, the double-opening ring is matched with a tail end groove of the valve rod, and the shaft sleeve is located above the double-opening ring.
According to the technical scheme, the butterfly valve sealing valve seat further comprises a sealing gasket and a rear cover, the sealing gasket is matched with the rear cover, the rear cover is matched with the valve body, and the rear cover is fixedly connected with the valve body through bolts.
According to the technical scheme, the butterfly valve sealing valve seat further comprises a butterfly spring and a packing pressing sleeve, the butterfly spring and the packing pressing sleeve are sleeved on the valve rod in an sleeved mode, and the butterfly spring and the packing pressing sleeve are located between the seasoning pressing cover and the packing box.
The utility model discloses a butterfly valve sealing valve seat, its beneficial effect lies in, the butterfly plate sealing surface designs into arc structural shape, not only saves the material materials, can also bear the bigger pressure of pipeline, and the sealed extrusion deformation is few simultaneously, has improved the sealing performance of product; the valve seat sealing ring is made of polytetrafluoroethylene materials and is formed by die casting or machining, the structural size and the surface precision of the sealing ring are guaranteed through the die or machining, and sealing between the sealing ring and the butterfly plate and between the sealing ring and the valve body is effectively guaranteed; the valve seat sealing ring is effectively and firmly combined with the valve body through the sealing ring pressing plate, so that the sealing performance of the product in the using process is continuously kept stable and reliable.
Drawings
Fig. 1 is a schematic sectional view of the overall structure of the preferred embodiment of the present invention.
Fig. 2 is a schematic sectional structure view of a valve body according to a preferred embodiment of the present invention.
Fig. 3 is a schematic sectional structure view of a valve seat seal ring according to a preferred embodiment of the present invention.
Fig. 4A is a schematic cross-sectional view of a sealing ring pressing plate according to a preferred embodiment of the present invention.
Fig. 4B is a schematic structural diagram of a sealing ring pressing plate according to a preferred embodiment of the present invention.
Fig. 5A is a schematic structural diagram of a butterfly plate according to a preferred embodiment of the present invention.
Fig. 5B is a schematic structural diagram of a butterfly plate according to a preferred embodiment of the present invention.
Fig. 5C is a schematic structural diagram of a butterfly plate according to a preferred embodiment of the present invention.
The reference numerals include: 1-a packing gland; 2-a belleville spring; 3-packing and pressing; 4-stuffing box; 5-a filler pad; 6-valve body; 7-shaft sleeve; 8-supporting sleeve; 9-a butterfly plate; 10-a conical pin shaft; 11-valve seat sealing ring; 12-a sealing ring pressure plate; 13-fixing the bolt; 14-a valve stem; 15-split ring; 16-a seal gasket; 17-rear cover.
Detailed Description
The utility model discloses a butterfly valve seals disk seat combines preferred embodiment below, and is right the utility model discloses a detailed embodiment further describes.
Referring to fig. 1 to 5C of the drawings, fig. 1 shows an overall sectional structure of the butterfly valve seal seat, fig. 2 shows a sectional structure of a valve body of the butterfly valve seal seat, fig. 3 shows a sectional structure of a seat seal ring of the butterfly valve seal seat, fig. 4A shows a sectional structure of a seal ring pressing plate of the butterfly valve seal seat, fig. 4B shows a specific structure of a seal ring pressing plate of the butterfly valve seal seat, fig. 5A shows a specific structure of a butterfly plate of the butterfly valve seal ring, fig. 5B shows a specific structure of a butterfly plate of the butterfly valve seal ring, and fig. 5C shows a specific structure of a butterfly plate of the butterfly valve seal ring.
Preferably, the butterfly valve sealing valve seat comprises a packing gland 1, a packing box 4, a packing pad 5, a valve body 6, a shaft sleeve 7, a butterfly plate 9, a conical pin shaft 10, a valve seat sealing ring 11, a sealing ring pressing plate 12, a fixing bolt 13 and a valve rod 14, wherein:
the valve body 6 and the butterfly plate 9 are connected with the conical pin shaft 10 through the valve rod 14, and the sealing surface of the butterfly plate 9 is arc-shaped;
the valve seat sealing ring 11 and the valve body 6 are fixedly connected with a sealing ring pressing plate 12 through a fixing bolt 13;
a packing pad 5 is arranged at the bottom of the packing box 4, a packing pad through hole is formed in the middle of the packing pad 5, and the packing pad 5 is sleeved on the valve rod 14 through the packing pad through hole;
the shaft sleeve 7 is positioned below the packing pad 5, a shaft sleeve through hole is formed in the middle of the shaft sleeve 7, and the shaft sleeve 7 is sleeved on the valve rod 14 through the shaft sleeve through hole;
the packing pad 5 is filled with packing, the packing gland 1 is positioned above the packing pad, the packing gland 1 is sleeved on the valve rod 14, and the packing gland 1 is fixedly connected with the valve body 6 through symmetrical bolts.
Further, the material of the filler filled in the filler pad 5 is preferably polytetrafluoroethylene.
Further, the packing gland 1 is in a disc shape with a hole in the center.
Further, the butterfly valve sealing valve seat further comprises a supporting sleeve 8, and the supporting sleeve 8 is fixedly connected with the butterfly plate 9, so that the supporting sleeve 8 is used for supporting the butterfly plate 9 to move up and down.
Further, the butterfly valve sealing valve seat further comprises a double-split ring 15, the double-split ring 15 is matched with a tail end groove of the valve rod 14, and the shaft sleeve 7 is located above the double-split ring 15.
Further, butterfly valve seals valve seat still includes sealed 16 and back lid 17 of filling up, sealed 16 and the cooperation of back lid 17 of filling up, back lid 17 and the cooperation of valve body 6, back lid 17 passes through bolt and valve body 6 fixed connection.
Further, the butterfly valve sealing valve seat further comprises a butterfly spring 2 and a packing pressing sleeve 3, the butterfly spring 2 and the packing pressing sleeve 3 are sleeved on the valve rod 14, and the butterfly spring 2 and the packing pressing sleeve 3 are located between the seasoning pressing cover 1 and the packing box 4.
According to above-mentioned preferred embodiment, the utility model discloses a butterfly valve seals disk seat, its technical essential explains as follows.
1. The sealing surface of the butterfly plate is designed into a circular arc structure shape, as shown in fig. 5A, the butterfly plate can use less raw materials, can bear larger pressure of a pipeline, has less sealing extrusion deformation, and improves the sealing performance of a product.
2. The valve seat sealing ring is made of polytetrafluoroethylene materials and is formed by die casting or machining, and the structural size and the surface precision of the sealing ring are guaranteed through the die or machining, so that the sealing ring can be effectively sealed with the butterfly plate and the valve body.
3. The valve seat sealing ring (shown in figure 3) is effectively and firmly combined with the valve body (shown in figure 2) through the sealing ring pressing plate (shown in figure 4A and figure 4B), so that the sealing performance of the product in the use process is continuously kept stable and reliable.
According to the above preferred embodiment, the utility model discloses a butterfly valve seals disk seat, its advantage explains as follows.
1. The butterfly plate is sealed to be the arc structure, not only can practice thrift the cost, but also can bear bigger pressure.
2. The valve seat sealing ring is formed by die casting or machining, so that the machining time of product parts is saved, more importantly, the process improves the product precision, and the structural shape of the product is ensured, thereby ensuring the sealing performance of the product and prolonging the service life of the product.
According to the above preferred embodiment, the utility model discloses a butterfly valve seals disk seat, its design key point explains as follows.
1. The butterfly plate sealing surface is designed into an arc-shaped structure, so that the appearance and lines of the product are smooth, the production cost is saved, the extrusion between the butterfly plate and the sealing ring is reduced, and the sealing performance of the product is improved.
2. The valve seat sealing ring is formed by die casting or machining, the shape, size and precision of the valve seat sealing ring are guaranteed, and the sealing performance and service life of the product are greatly improved.
According to the above preferred embodiment, the utility model discloses a butterfly valve seals disk seat, its theory of operation explains as follows.
Specifically, the valve body 6 and the butterfly plate 9 are connected with a conical pin shaft 10 through a valve rod 14, so that the valve rod 14 is driven by the operation of a hand wheel to drive the butterfly plate 9 to rotate, and the switch is realized. The sealing surface of the butterfly plate 9 has a circular arc-shaped structure and forms good sealing with the valve seat sealing ring 11. The valve seat sealing ring 11 and the valve body 6 are fixedly connected with a sealing ring pressing plate 12 through a fixing bolt 13. The bottom of the stuffing box 4 is provided with a stuffing pad 5, the middle part of the stuffing pad 5 is provided with a through hole of the stuffing pad, and the stuffing pad 5 is sleeved on the valve rod 14 through the through hole of the stuffing pad during installation. An axle sleeve 7 is arranged below the packing pad 5, an axle sleeve through hole is arranged in the middle of the axle sleeve 7, and the axle sleeve through hole is sleeved on the valve rod 14 during installation. The supporting sleeve 8 is used for supporting the butterfly plate 9 to move up and down. The packing pad 5 is filled with packing made of polytetrafluoroethylene, a packing gland 1 is arranged above the packing pad 5, the packing gland 1 is in a disc shape with a hole in the center, and the packing is sleeved on the valve rod 14 and fixedly connected with the valve body 6 through symmetrical bolts to compress the packing during installation. The split ring 15 is matched with the tail end groove of the valve rod 14, and the shaft sleeve 7 is arranged above the split ring 15. The sealing gasket 16 is matched with the rear cover 17, and the rear cover 17 is matched with the valve body 6 and fixedly connected with the valve body through bolts.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a butterfly valve seals disk seat, its characterized in that, includes gland, stuffing box, packing pad, valve body, axle sleeve, butterfly plate, circular cone round pin axle, valve seat sealing washer, sealing washer clamp plate, fixing bolt, valve rod, wherein:
the valve body and the butterfly plate are connected with a conical pin shaft through a valve rod, and the sealing surface of the butterfly plate is arc-shaped;
the valve seat sealing ring and the valve body are fixedly connected with the sealing ring pressing plate through fixing bolts;
a packing pad is arranged at the bottom of the packing box, a packing pad through hole is formed in the middle of the packing pad, and the packing pad is sleeved on the valve rod through the packing pad through hole;
the shaft sleeve is positioned below the packing pad, the middle part of the shaft sleeve is provided with a shaft sleeve through hole, and the shaft sleeve is sleeved on the valve rod through the shaft sleeve through hole;
the packing pad is filled with packing, and gland is located the packing pad top, and gland cup joints on the valve rod, gland through symmetrical bolt and valve body fixed connection.
2. The butterfly valve seal seat of claim 1, wherein the material of the filler filled by the filler pad is polytetrafluoroethylene.
3. The butterfly valve seal seat of claim 1, wherein the packing gland is in the shape of a disk with a central hole.
4. The butterfly valve seal seat of claim 1, further comprising a support sleeve fixedly attached to the butterfly plate.
5. The butterfly valve seal seat of claim 1 further comprising a double-split ring that mates with a terminal groove of the valve stem, the boss being positioned above the double-split ring.
6. The butterfly valve seal seat of claim 1, further comprising a seal gasket and a back cover, the seal gasket cooperating with the back cover, the back cover cooperating with the valve body, the back cover being fixedly attached to the valve body by bolts.
7. The butterfly valve seal seat of claim 1 further comprising a belleville spring and a packing gland, the belleville spring and the packing gland being nested on the valve stem, the belleville spring and the packing gland being located between the flavoring gland and the stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920076807.1U CN209943536U (en) | 2019-01-17 | 2019-01-17 | Butterfly valve sealing valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920076807.1U CN209943536U (en) | 2019-01-17 | 2019-01-17 | Butterfly valve sealing valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943536U true CN209943536U (en) | 2020-01-14 |
Family
ID=69121102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920076807.1U Expired - Fee Related CN209943536U (en) | 2019-01-17 | 2019-01-17 | Butterfly valve sealing valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209943536U (en) |
-
2019
- 2019-01-17 CN CN201920076807.1U patent/CN209943536U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 Termination date: 20210117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |